Horizontal jet type pump for shallow or deep wells



Aug. 26, 1952 w J CONERY 2,608,157

HORIZONTAL JET TYPE PUMP FOR SHALLOW OR DEEP WELLS Filed Sept. 7, 1948 2 SI-IEETSSHEET l INVENTOR WILLIAM CONERY ATTORNEY-5 Aug. 26; 1952 w. J. CONERY HORIZONTAL JET TYPE PUMP FOR SHALLOW 0R DEEP WELLS 2 SHEETS-SHEET 2 Filed Sept. 7, 194a INVEI VTOE WILLIAM J (J/VERY v JP epitome of simplicity.

Patented Aug. 26, 1952 HORIZONTAL JET TYPE PUMP FOR SHALLOW OR DEEP WELLS William J. Conery, Ashland, Ohio, assignor to The F. E. Myers & Bro. 00., Ashland, Ohio, a

corporation of Ohio Application September 7, 1948, Serial No. 47,986

, '3 Claims. 1

The present invention relates to jet type pumps and is concerned primarily with a pump that is adapted for use with either shallow or deep wells by a very simple change in the connections to the pump.

At the present time pumps of the jet type are being produced by pump manufacturers, and some such pumps are adapted for use with either shallow or deep wells. However, in the pumps now available the structure of the pump involving the air separation chamber and passages associated therewith call fora casting that includes webs,- partitions, channels, and, other structural parts which make the manufacture of such a casting a highly diflicult and involved process. i 'iccordingly, the present invention has in view .as its foremost objective the provision of a pump of the type indicated in which the construction of the pumpcasing has been held down to the ,;;More in detail, the invention has as an object the provision of a pump of the type noted, which includes a chamber which functions as a combined air separation and priming chamber regardless of whether the pump is used with deep or shallow wells, and a special type of jet pump mounted therein, and communicating with a centrifugal impeller pump when used with shallow wells, but which has a conduit extending thereacross to communicate between the return side of 'a jet pump and the centrifugal impeller when used with deep wells. This chamber is defined by a casing and includes no partitions, webs, or other structural elements which would be difficult to cast.

I Still another object of the invention is the pro-' vision of a pump of the type noted which includes essentially the chamber aforesaid, a centrifugal impeller pump being mounted in the wall of said chamber with the opposite wall being formed with an opening designedto receive'a fitting.

A motor is operatively connected to drive the centrifugal impeller pump. The chamber is also formed with an opening in a wall adjacent the bottom thereof, and this opening is closed by a plug when the pump is used with a shallow well.

In such case the jet pump, comprising the .nozzleand venturi, is assembled to extend across the fitting to communicate with the centrifugal impeller pump, and provision is made for the jet pump to communicate with the chamber at a space immediately around the jet nozzle.

' 1 When the pump is used with a deep well the jet pump assembly is removed and replaced by a Welluse; r

. 2 conduit that extends from the fitting to the censtrifugal impeller pump. The return-side of the jet pump that is located in the well is connected t the fitting, while the supply side of the jet system is connected at the opening from which the plug is removed.

Various other more detailed objects and advantages of the invention such as arise in carrying out the above noted ideas in a practical embodiment will in part become apparent and in part-be hereinafter stated as the description ofjthe invention proceeds.

Theinvention therefore comprises'a jet type pump for deep or shallow wellswhich consists essentially of a chamber defined by a casinghaving spaced walls; A centrifugal impeller pump is operatively mounted in one wall and the opposite wall carries a fitting substantially in align ment with the axis of the centrifugal impeller pump. 1

When used for shallow well pumps a jet pump extends from this fitting to a point where it communicates with the centrifugal impeller pump, the jet pump also communicating with the chamber. c

When used for deepwell pumps thejet-pump is removed and replaced by a conduit which extends from the fitting to the centrifugal impeller pump. This fitting, as well as another opening in the chamber which is closed for shallow well useyare connected to the pressure and supply sides of a jet system including a jet pump located in the well. 4 i v For a full and more complete understanding of the invention reference may be had to the following description and accompanying drawings wherein: v v 7 7 f Figure 1 is a view in side elevation showing the pump of this invention when adapted for shallow Figure 2 is another side view somewhat similar to Figure 1 but showing the pump as adapted'for deep well use. In this view certain parts of the jet system are broken away and shown in section; Figure 3 is an enlarged detailed view partly in elevation and partly in section and developing the interior of the pump proper in section; and

Figure 4 is a sectional view showing the connections to the chamber when the pump is adapt ed for deep well use.

Referring now more particularly to Figure l, the pump of this invention is therein illustrated and shown as comprising a base II) which is adapted to rest on anyv suitable support.

r This base It! carries a main body casting which 3 is designated at I I. The casting l l carries at one side an electric motor I2 and at the other side a pump casing [3.

A suction pipe i4 is shown as connected to the casing l3 and this pipe is adapted to extend to what is known as a shallow well, that is, one the depth of'which does not exceed 25 feet.

Referring now more particularly to Figure 3, the casing I3 is shown as having an end wall 15 that is anchored to the casting II by the screw bolts shown at It. This wall is also formed with a large central opening in which isa'nchored' a centrifugal impeller pump casing ll.

As shown in Figure 3 this latter element-may be formed as a part of the casting ii. A complemental impeller casing element is designated [8,-

and the two together define a pumping cham-; ber l9.

Mounted for rotation in the latter is a" centrifugal impeller 20 having an axial inlet passage at 2l-whichcommunicates with the outwardly extending passages '22. This centrifugal impeller 20' iscarried by a stub shaft 23 that is in turn connected to a drive shaft 24 of the motor i2.

The casing I3 defines a chamber 25 which communicates with the pump chamber I9 through passages formedin the casing element I8.

I Atthis point it is well to note that a seal is provided at26 for preventing fluid from escaping from the pumping chamber [9 along the connecting shaft 23.

The wall I5 is also formed with a threaded opening at 21 in which is screwed'a fitting 28 which may extend to a pressure tank or other place where water is to be stored.

The'casing l3 also has a top wall 29 formed with a threaded opening 30 which is normally closed by a fitting 3! which may carry a pressure 'g'a'geshown at'32. Obviously, this fitting 3l' may be removed as occasion demands to permit water to be supplied to the chamber 25 as for primin purposes.

The casing l3 also includes another side wall "33 which is opposite to the wall 'andthiswall is formed with a threaded opening at 34 that is substantially in' alignment with the axis of the impeller 20. Screwed into this opening 34 is a-ntting 35.

It will be'noted that the supply pipe conduit l4 "which extends upwardly from the'well is connected'to this fitting'35, and the latter may also carry an air valve as shown at for a purpose later to be described. When the well is adapted for shallow welluse this fitting 35 carries the nozzle of a jet pump as represented at 31. "This nozzle extends into the funnel shaped entrance of a venturi as represented at 38. Moreover, thereare spaces 39 provided around the nozzle 31 so as to establish communication between the chamber 25 and the jet pump madeup of E and extends outwardly from the pump casing The wall 33 is also formed with a threaded.

at 43 which is closed by a plug 44 when the pump is-employed for shallow well purposes.

Shallow well operation shallow well operation the pump'isfirst primed, "that is, the chamber 25 is fllled'with passed through the centrifugal impeller pump -anddelivered back to the chamber 25. In the chamber 25 the air separates from the water and is passed outwardly through the fitting 23 to the. pressure tank.

'Toretainthe pi-iming water in the chamber 25"abovethe "level'of the nozzle 31 during the priming operation, and to retain a prime in the pump. acheck valve is placed in the suction line I4"nea r*the pump or a foot valve is used at the bottom end of the suction line l4, or both may be used.

This drawing of air from the suctionupipe 14 will continue until substantially all ofathe air will have been'evacuated therefrom, whereupon the pump begins to draw water. This watertwill'be drawn from the suction pipe I4 by the action of the jet pump 31-38 and delivered'throughthe centrifugal impeller pump to theichambei-"fl. As much water as is needed to'operate'the jet pump-3148 will be recirculated back int-the manner described. However, the additional water which is drawn from the well will be passed out through the fitting 28 to the pro lsure 'tank or the place where it is to be used or stored.

It will be noted that the water'and air isrecirculated by the centrifugal impeller pump from the chamber 25 through'the reverse-jet' pump 3'l38 to the pump chamber IQ'and backtothe chamber 25. This recirculation 'results -in "a pressure boost, making itpossible 'tolobtain-pre'ssures sufficiently high and'satisfactory 'fo'r the pressure system operation which is *essentlal for shallow well operation.

Deep wezz ihstazzitizm Referring now for the moment-to Figure 2, which will be considered alongwith Figure 4,-"i't will be noted that when the pump -is for deep well use the base Imcas'tin'g H, motor 12, and easing l3, remain the same. insteadof the suction'pipe l4 a jet'system, which is identified'in its entirety by the reference cha'racter s, is connected to thec'asing is. Thisjet system S includes a jet supply lin'e"45"and"a"p'ressure or return line 46. I V

The jet pumpits elf is disposedi atTaIpMper location within the well and includes a nozzle 41 which cooperates with-a venturi- 48rin a well known manner.

Referring now to Figural; it"willE benotedthat the plug 44 has been removed fromthe' opening 43 *and the jet supply pipe 45 connected to tne casing l3at this point, Mor'eov'er the i'lttin'g '35 has been replaced by 1 another fitting 49, to which the jet return or pressure li'r'ieflfl is connected. V I

It is further noted that when the fitting 35 removed the som 31 and-'venturi 33will'fpome out with "it; The fitting 49 includes a tubular extension- 50 which extends into'tlie' 'tubular'n'iember 40, -with the telescopic 'connec'tici'n sealed by thering of O cross section at Deep well operation 1 When the installation above described is used with deep wells, the motor I2 is started into operation to drive the centrifugal impeller 28.

Attention is first called to' th'e'fact that for deep well use the fitting 28 will carry a pressure control valve (not illustrated) which will prevent the passage of fluid through the fitting until a certain predetermined pressure has been exceeded.

Thus, as the centrifugal impeller pump operates it builds up pressure on the fluid in the chamber 25 and water is forced down through the jet supply pipe 45 to the nozzle 41. As the jet emerges from the latter and is delivered to the venturi 48' it entrains water from the ,well and this combined water passes upwardly through the jet "return pipe 46, from which it passes through the fitting 49, tubular extension 56, and tubular member 40 back to the inlet 2| of the centrifugal impeller pump. i

This combined water is then delivered from the centrifugal impeller pump back to the chamber 25. As much water as is needed tooperate the jet system will be returned through the jet supply pipe 45 to the jet system. However, the excess water will pass through the fitting 28 when sufficient pressure has been built up thereon to overcome the pressure control valve. From this fitting 28 the water goes to the pressure tank. It will be noted that any air which is separated from the water in the chamber 25 will go with the water to the pressure tank. 4 It is to be remembered that the water supply or pressure tanks which are commonly employed with pumps of this type must include a certain amount of air under pressure in order to discharge the water as it is being; used. Thus, it is important that there bean adequate supply of air as well as the water.

Thus, in both installations of the pump the air valve shown at 3B is included for the purpose of admitting such air as is needed. This air valve is usually connected to a suitable well known float-controlled air volume control mounted in the pressure tank for automatically maintaining proper air volume in the tank.

It is further noted that a pressure responsive device 5| is associated with the electric motor 12 for automatically bringing it into operation when pressure within the chamber 25 falls below a predetermined limit and for stopping the operation when it exceeds a certain limit. This pressure responsive control 5| is connected to the chamber by the conduit shown at 52.

While preferred specific embodiments of the invention are hereinbefore set forth, it is to be clearly understood that the invention is not to be limited to the exact constructions and devices illustrated and described because various modifications of these details may be provided in putting the invention into practice within the purview of the appended claims.

I claim:

1. In a convertible deep and shallow well pump the combination of a distribution casing having a pair of spaced opposed walls, a pressure pump operatively mounted in one of the walls and having a suction inlet and a pressure outlet, said outlet communicating with the interior of said casing, an opening in said one wall and a discharge pipe secured to said casing at said opening, a pair of openings in the other of said walls, one of said pair of openings being in line with the suction inlet of the pump, a removable plug in the other of said pair of openings, atubular member 100.11? tained within the casing in line with .said'.suc+ tion inlet and secured at one end to said pump, the other end of the tubular member extending toward the opening which is in line with the suction inlet of the pump,-but stopping short ofthe last-mentionedopening, a jet pump comprising nozzle'and diffuser elements arranged. end to end with a portion of the diffuser surrounding the tip of the'nozzle element and spaced therefrom by an annular opening, said nozzle :passing through said opening which is in line. with the suction inlet of the pump and removably secured in the opening, said diffuser extending into said tubular member to a position immediately adjacent said suction inlet, said'annular opening constituting a passageway between the distribution chamber and the'interior of the diffuser, a detachable sealing connection between 'the ex trior surface of said diffuser and the interior of said tubular member to prevent direct communication between the distribution chamber and said suction inlet except through said annular opening and the diffuser, said jet pump as a unit being adapted to be withdrawn from said tubular member and distribution chamber through the opening which is in line with thesuction inlet of the pump when converting from shallow to deep well operation.

2. In a convertible deep and shallow well pump the combination of a distribution casing having a pair of spaced opposed walls, a pressure pump operatively mounted in one of the walls and hav ing a suction inlet and a pressure outlet, said outlet communicating with the interior of said casing, an opening in-said one wall and adischarge pipesecured to said casing at said-open ing, a pair of openings in the otherof said walls, one of said pair of openings being-in lin'eiwith the suctioninlet of the pump, a removablezplugin the other of said pair of openings, a tubular member contained within the casing in line with said suction inlet and secured at one end to said pump, the other end of the tubular member extending toward the opening which is in line with the suction inlet of the pump, but stopping short of the last-mentioned opening, a jet pump comprising nozzle and diffuser elements arranged end to end with a portion of the diffuser surrounding the tip of the nozzle element and spaced therefrom by an annular opening, said nozzle passing through said opening which is in line with the suction inlet of the ump and removably secured in the opening, said diffuser extending into said tubular member to a position immediately adjacent said suction inlet, said annular opening constituting a passageway between the distribution chamber and the interior of the diffuser, said difiuser having a shoulder at its I end nearer the nozzle which fits snugly but slidably within the tubular member, a sealing ring interposed between said shoulder and the tubular member to prevent direct communication between the distribution chamber and the suction inlet except through the diffuser, whereby the diffuser is adapted to slide along the interior of the tubular member without breaking the seal and the end of the tubular member remote from the pressure pump is completely filled by aid diffuser and the sealing ring, said jet pump being adapted to be withdrawn as a unit from the distribution chamber through said opening which is in line with the suction inlet of the pump when converting from shallow well to deep well operation, said sealing connection being re- 7 eltbhlhldmhenu'eeoonversionismadetromidm to1mhblluw wellcopemtion.;and :the jet :pump' F remserted through .the. last-mentioned \aopening to :couse 1 the .idifluser pto. ire-enter vsaid .tubular i.'In''aconvertible.deep and. shallow :well pump the cnmbination 011a distribution casing having limit onspaced. opposed walls. .apressure pump operativelymountedin oneof the-wallsand havinzia'suotioninlet and amnessure 0utlet,,said outletrcommunicating with the interior of :said cas- Y m, an opening :in said-onewall and :a discharge .pipepecured to said casing at said'opening,:a pair ot npenings-in-the other oi. sai'd:wall s,-one ofisaid pair ofmpenings being :in line with the suction inlet-oft the :pump. arernovable plug initheother of: saidgpair ofopenings, a tubular :member :contfl-imdwithinthe casingin line withsaid suction inlet and secured at vgone ;end to said ,pump the other-send ofzthe tubularmember extending-to- .ward :the-opening which is in line with the suction inlet of. the .-'p11mp, (but stopping short of the lasbmentioned opening, a 'jet pump "comprising nozzleandrdiffuser elements arranged end to end withea portion of the difiuser surrounding the .tip o! the nozzle element and spaced therefrom by :an annular opening, said nozzle passing .through said opening whichris in line with the suction inlet of the pump and .removably "secured in the-opening, saiddifiuserextending into said tubular member to. a;position immediately .adiaoentssaid suction inlet, said annular openlug -constituting :a passageway between the dis- .trihutionochamber and the interiorof the difiuser, :Sflid .difiuser vhaving a. shoulder .at 4 its end nearer the nozzle which fits snugly but. slidably :tubular member, said shoulder being peripherallmgrooved, a;sealing ring of '0 section positioned in the groove-and adapted tobear againstethe interior surface of said tubular memher to prevent direotoommunieation between the distribution chamber and the suction inlet except through said: annular'opening and the difuser 'wherebytthe difluser is adapted'to slide along the interior'ot ithe tubular-member without breaking the seal andithe end of the'tubular member remote from the pressure pump is completely filled'by said vdiffuser and the sea'ling'ring, said jetfipuinp being adapted to'be withdrawn as a unit Irom'the'distributionchamber through said opening which is inline with the suction inlet ofthe pumpwhen' converting 'Iromvshallow well to 'deep well operation and saldtubular member being adapted to slide along the shoulder of the difluserwhen being removedjrom-the distribution chamber together with the pressure pump- J. CONEBY.

"REFERENCES crra-n I The following references are; 1 of record in the file of this-patent: v V I STATESLPA'I'ENTS Number Name 'Date 1*,89'43234 "Engstrand Jan."1'0, 193-3 2;0'7'5213 Conery' et' a1. r Apr. 13,1937 21481131 Parker Feb. 21,1939 2117.4,960 'TBarzen 'Oct.3,'1939 "2257,50? "Mann Sept. .30; 1941 22917.46 Nelson et .al. v Aug; 4, 1942 122911160 Ruppfl" Aug. 4/1942 '2;335,I09 'Conery "N0v. 23.1%?! "2,368,367 Lung V "Jan; 30,1945 "23375571 Mann ,TMay 8,,1945 2,396,319 ..-Edwards.et a1 Mar. 1.2, 1946 2,403,556 Ruth l July 9,.194'6 .-2,4'75,118 Wolfeet a1--- July'fi; 1949 ..2,505,968 vJack "A May2,11950 

